Too bad there were no replies to help on how the roadbed was constructed. If it was trex I still have no idea of the dimensions it was cut to to get the bends and lace between. Heck even the overall width. Hard to find details to help. Even a transit to get all the post all the same height. I have seen some set on telescoping PVC pipe which seems it all can be adjusted as you build. Like nobody wants to help learn but just show off their layout. Sorry.
Guys, This video was made when we began building the railroad in 2010. There is more information on how we built it and what we are d king now at: Www.brokenbushandroundtop.com Jules